Successful development of software systems involves the efficient navigation of software artifacts. However, as artifacts are continuously produced and modified, engineers are typically plagued by challenging information landscapes. One stateof-practice approach to structure information is to establish trace links between artifacts; a practice that is also enforced by several development standa...

growing applications of phenylalanine dehydrogenase (phedh) enzyme in the medical and pharmaceutical industries encourages researchers to seek simple, fast and economical alternative purification methods. with goal of finding a new technique, the extraction and purification of recombinant bacillus badius phedh in polyethylene glycol 6000 (peg-6000) and ammonium sulfate aqueous two-phase systems...

The using of double heat pipe based heat exchanger (HPHX) in a conventional fully fresh air air-conditioning (AC) system was examined in the present study. The fabricated HPHXs were tested under the actual conditions and the measured data were used to study the performance of the existing AC system (System A) and AC system equipped with the double HPHX (System B) for a yearly operation through ...

Background The mortality rate of horses undergoing general anaesthesia is high when compared to humans or small animal patients. One of the most critical periods during equine anaesthesia is recovery, as the horse attempts to regain a standing position. This study was performed in a private equine practice in Belgium that uses a purpose-designed one-man (head and tail) rope recovery system to a...

Roll-forward checkpointing schemes [Long et al. 1990; Pradhan and Vaidya 1992] are developed in order to avoid rollback in the presence of independent faults and increase the possibility that a task completes within a tight deadline. Despite of the adoption of roll-forward recovery, these schemes are not necessarily appropriate for time-critical applications because interactions with the extern...

Demand response (DR) is counted as an effective method when there is a large-capacity power shortage in the power system, which may lead to peak loads or a rapid ramp. This paper proposes a bi-level coordinated optimization strategy by quantitating the DR potential (DRP) of smart appliances to descend the steep ramp and balance the power energy. Based on dynamic characteristics of the smart app...

The development of an IS for an organization is a project of a strategic nature. The development process is a time-consuming and special budgeted project that follows the six stages of the System Development Life Cycle (SDLC). Integrating security within the SDLC is a very important issue. The security of an IS is designed at the very early stages of its development. A security object that is n...

background: emergence delirium (ed) is a frequent postoperative complication in children. its prevalence is about 25-80% and is observed more commonly with rapid-acting volatile anesthetics than the older inhalation agents. methods: 30 patients aging between 2 to 8 years were included in this randomized double blind study. we compared the effect of combination of two anesthetic drugs, propofol-...

Hydraulic excavator energy saving is important to relieve source shortage and protect environment. This paper mainly discusses the energy saving for the hybrid hydraulic excavator. By analyzing the excess energy of three hydraulic cylinders in the conventional hydraulic excavator, a new boom potential energy recovery system is proposed. The mathematical models of the main components including b...